Watch in action

Unlock Your Turbo Potential with GFB Hybrid TMS

Upgrade your Subaru's forced induction system with the legendary GFB Hybrid TMS Dual Port Blow Off Valve. Designed for enthusiasts who demand both performance and sound, this valve utilizes a unique staging mechanism. During light throttle, the valve recirculates air to ensure your engine management system remains happy. As you push your Subaru WRX STI or Forester XT harder, the valve opens further, exposing the atmospheric port to produce that satisfying, aggressive blow-off sound.

Why Choose GFB Hybrid TMS?

• Smart Venting: Staged dual-port design prevents rich running conditions during light acceleration.
• Enhanced Performance: Faster boost recovery during gear changes for improved acceleration.
• Broad Compatibility: Fits a wide range of Subaru platforms including 2002-2007 WRX, 2004-2020 WRX STI, and 2005-2008 Forester XT.
• Precision Engineering: Built to withstand high boost pressures and extreme thermal cycles.

This valve is the ultimate solution for those who want the performance benefits of a recirculating valve with the audible feedback of an atmospheric unit. It is a must-have upgrade for any modified Subaru engine setup. Experience the difference in turbo response and reliability with this premium component. Find this and more performance parts at GGCRACING.